19100320085 has 48 divisors (see below), whose sum is σ = 28826313600. Its totient is φ = 11892735360.

The previous prime is 19100320069. The next prime is 19100320093. The reversal of 19100320085 is 58002300191.

It is not a de Polignac number, because 19100320085 - 2⁴ = 19100320069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4525106 + ... + 4529324.

It is an arithmetic number, because the mean of its divisors is an integer number (600548200).

Almost surely, 2^19100320085 is an apocalyptic number.

It is an amenable number.

19100320085 is a deficient number, since it is larger than the sum of its proper divisors (9725993515).

19100320085 is a wasteful number, since it uses less digits than its factorization.

19100320085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322 (or 5311 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 19100320085 in words is "nineteen billion, one hundred million, three hundred twenty thousand, eighty-five".